Smart Glasses That Could Replace Guide Dogs: .lumen's Bold Vision

Jan de Vries · 2026-10-15

What if technology could give blind people the freedom of a guide dog – without the waitlists, the cost, or the care requirements? That's the question driving .lumen, a Romanian startup building smart glasses that help blind and visually impaired people navigate the world independently. In this episode of the EU-Startups Podcast, we sit down with Cornel Amariei, CEO and founder of .lumen, to explore how this groundbreaking technology works and what it means for the future of assistive mobility. ### From Personal Experience to Purpose Cornel's story starts at home. Born into a family where both parents live with locomotor disabilities and his sister with a mental disability, he saw firsthand how much technology can change a life – and how little of it actually exists for people with disabilities. He was programming at seven, building robots at thirteen, and running profitable companies before finishing high school, before eventually leading innovation in autonomous driving at Continental Automotive Systems. In 2020, he channeled all of that into .lumen, a company with one mission: replicate the benefits of a guide dog for the millions of people who can never have one. ### How the Glasses Work The .lumen glasses use advanced 3D environment perception to map the world around the user. They plan safe, human-centred paths and translate the environment into something a blind user can navigate confidently. The system includes in-house mapping and semantic surface understanding, meaning it doesn't just detect obstacles – it understands what they are. For example, it can distinguish between a curb and a staircase, or between a moving car and a parked one. This level of detail is crucial for safe navigation. ### The Guide Dog Comparison So how does .lumen compare to a guide dog? According to Cornel, the glasses match many of the benefits today: they provide real-time guidance, help avoid obstacles, and offer a sense of freedom. But the analogy breaks down in some areas. A guide dog can make complex decisions based on subtle cues, like the sound of traffic or the feel of the ground. The glasses, while impressive, are still catching up in those nuanced areas. That's why .lumen aims to complement canes and dogs rather than replace them. The goal is to offer an option for those who can't access a guide dog due to cost, waitlists, or care requirements. ### What Blind Users Taught the Team One of the most valuable lessons came from blind users themselves. Engineers alone could never have discovered the subtle ways people navigate the world. For instance, users taught the team that the sound of the glasses' feedback needs to be customizable – some prefer a gentle tone, others a more urgent beep. Organisations for the visually impaired have responded positively, seeing the potential to expand independence for their communities. ### The Road to Commercial Availability So when can you buy a pair? The transition from research project to manufacturable product is underway, but challenges remain. Romania's DeepTech ecosystem faces barriers like limited funding and manufacturing infrastructure. Cornel estimates that within a few years, the glasses could be available for around $2,000 – a fraction of the cost of a guide dog, which can exceed $50,000 over its lifetime. But for assisted mobility technology to become truly mainstream, more investment and awareness are needed. > "Technology should not be a luxury. It should be a tool that empowers everyone," Cornel says. That philosophy drives every decision at .lumen. ### What's Next for .lumen The team is currently running pilot programs with select users and refining the technology. They're also working on making the glasses lighter and more stylish, so users feel confident wearing them. With continued innovation and support, .lumen could soon change the lives of millions. To learn more, listen to the full interview on the EU-Startups Podcast. *This article is based on an interview with Cornel Amariei, CEO and founder of .lumen.*